<HTML>
<BODY BGCOLOR="white">
<PRE>
<FONT color="green">001</FONT>    // Copyright 2008 Waterken Inc. under the terms of the MIT X license<a name="line.1"></a>
<FONT color="green">002</FONT>    // found at http://www.opensource.org/licenses/mit-license.html<a name="line.2"></a>
<FONT color="green">003</FONT>    package org.waterken.trace;<a name="line.3"></a>
<FONT color="green">004</FONT>    <a name="line.4"></a>
<FONT color="green">005</FONT>    import java.io.Serializable;<a name="line.5"></a>
<FONT color="green">006</FONT>    <a name="line.6"></a>
<FONT color="green">007</FONT>    import org.joe_e.Struct;<a name="line.7"></a>
<FONT color="green">008</FONT>    import org.ref_send.log.Anchor;<a name="line.8"></a>
<FONT color="green">009</FONT>    import org.ref_send.log.Turn;<a name="line.9"></a>
<FONT color="green">010</FONT>    import org.ref_send.promise.Receiver;<a name="line.10"></a>
<FONT color="green">011</FONT>    <a name="line.11"></a>
<FONT color="green">012</FONT>    /**<a name="line.12"></a>
<FONT color="green">013</FONT>     * An event loop turn counter.<a name="line.13"></a>
<FONT color="green">014</FONT>     */<a name="line.14"></a>
<FONT color="green">015</FONT>    public class<a name="line.15"></a>
<FONT color="green">016</FONT>    TurnCounter extends Struct implements Serializable {<a name="line.16"></a>
<FONT color="green">017</FONT>        static private final long serialVersionUID = 1L;<a name="line.17"></a>
<FONT color="green">018</FONT>        <a name="line.18"></a>
<FONT color="green">019</FONT>        /**<a name="line.19"></a>
<FONT color="green">020</FONT>         * URI for the event loop<a name="line.20"></a>
<FONT color="green">021</FONT>         */<a name="line.21"></a>
<FONT color="green">022</FONT>        public final String loop;<a name="line.22"></a>
<FONT color="green">023</FONT>    <a name="line.23"></a>
<FONT color="green">024</FONT>        /**<a name="line.24"></a>
<FONT color="green">025</FONT>         * increment the turn counter<a name="line.25"></a>
<FONT color="green">026</FONT>         */<a name="line.26"></a>
<FONT color="green">027</FONT>        public final Receiver&lt;?&gt; flip;<a name="line.27"></a>
<FONT color="green">028</FONT>        <a name="line.28"></a>
<FONT color="green">029</FONT>        /**<a name="line.29"></a>
<FONT color="green">030</FONT>         * increment the anchor counter<a name="line.30"></a>
<FONT color="green">031</FONT>         */<a name="line.31"></a>
<FONT color="green">032</FONT>        public final Marker mark;<a name="line.32"></a>
<FONT color="green">033</FONT>        <a name="line.33"></a>
<FONT color="green">034</FONT>        private<a name="line.34"></a>
<FONT color="green">035</FONT>        TurnCounter(final String loop, final Receiver&lt;?&gt; flip, final Marker mark) {<a name="line.35"></a>
<FONT color="green">036</FONT>            this.loop = loop;<a name="line.36"></a>
<FONT color="green">037</FONT>            this.flip = flip;<a name="line.37"></a>
<FONT color="green">038</FONT>            this.mark = mark;<a name="line.38"></a>
<FONT color="green">039</FONT>        }<a name="line.39"></a>
<FONT color="green">040</FONT>        <a name="line.40"></a>
<FONT color="green">041</FONT>        /**<a name="line.41"></a>
<FONT color="green">042</FONT>         * Constructs an instance.<a name="line.42"></a>
<FONT color="green">043</FONT>         * @param loop  {@link #loop}<a name="line.43"></a>
<FONT color="green">044</FONT>         */<a name="line.44"></a>
<FONT color="green">045</FONT>        static public TurnCounter<a name="line.45"></a>
<FONT color="green">046</FONT>        make(final String loop) {<a name="line.46"></a>
<FONT color="green">047</FONT>            class State implements Serializable {<a name="line.47"></a>
<FONT color="green">048</FONT>                static private final long serialVersionUID = 1L;<a name="line.48"></a>
<FONT color="green">049</FONT>    <a name="line.49"></a>
<FONT color="green">050</FONT>                long turns = 1;     // id of current turn<a name="line.50"></a>
<FONT color="green">051</FONT>                long anchors = 1;   // id of next anchor<a name="line.51"></a>
<FONT color="green">052</FONT>            }<a name="line.52"></a>
<FONT color="green">053</FONT>            final State m = new State();<a name="line.53"></a>
<FONT color="green">054</FONT>            class Flip extends Struct implements Receiver&lt;Object&gt;, Serializable {<a name="line.54"></a>
<FONT color="green">055</FONT>                static private final long serialVersionUID = 1L;<a name="line.55"></a>
<FONT color="green">056</FONT>    <a name="line.56"></a>
<FONT color="green">057</FONT>                public void<a name="line.57"></a>
<FONT color="green">058</FONT>                apply(final Object ignored) {<a name="line.58"></a>
<FONT color="green">059</FONT>                    m.turns += 1;<a name="line.59"></a>
<FONT color="green">060</FONT>                    m.anchors = 1;<a name="line.60"></a>
<FONT color="green">061</FONT>                }<a name="line.61"></a>
<FONT color="green">062</FONT>            }<a name="line.62"></a>
<FONT color="green">063</FONT>            class Mark extends Struct implements Marker, Serializable {<a name="line.63"></a>
<FONT color="green">064</FONT>                static private final long serialVersionUID = 1L;<a name="line.64"></a>
<FONT color="green">065</FONT>    <a name="line.65"></a>
<FONT color="green">066</FONT>                public Anchor<a name="line.66"></a>
<FONT color="green">067</FONT>                apply() { return new Anchor(new Turn(loop, m.turns), m.anchors++); }<a name="line.67"></a>
<FONT color="green">068</FONT>            }<a name="line.68"></a>
<FONT color="green">069</FONT>            return new TurnCounter(loop, new Flip(), new Mark());<a name="line.69"></a>
<FONT color="green">070</FONT>        }<a name="line.70"></a>
<FONT color="green">071</FONT>    }<a name="line.71"></a>




























































</PRE>
</BODY>
</HTML>
